Mercurial > hg
view tests/test-convert-bzr-114.t @ 16414:e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
This greatly speeds up node->rev lookups, with results that are
often user-perceptible: for instance, "hg --time log" of the node
associated with rev 1000 on a linux-2.6 repo improves from 0.3
seconds to 0.03. I have not found any instances of slowdowns.
The new perfnodelookup command in contrib/perf.py demonstrates the
speedup more dramatically, since it performs no I/O. For a single
lookup, the new code is about 40x faster.
These changes also prepare the ground for the possibility of further
improving the performance of prefix-based node lookups.
author | Bryan O'Sullivan <bryano@fb.com> |
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date | Thu, 12 Apr 2012 14:05:59 -0700 |
parents | d1f88ae495b4 |
children | 7a9cbb315d84 |
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$ "$TESTDIR/hghave" bzr114 || exit 80 $ . "$TESTDIR/bzr-definitions" The file/directory replacement can only be reproduced on bzr >= 1.4. Merge it back in test-convert-bzr-directories once this version becomes mainstream. replace file with dir $ mkdir test-replace-file-with-dir $ cd test-replace-file-with-dir $ bzr init -q source $ cd source $ echo d > d $ bzr add -q d $ bzr commit -q -m 'add d file' $ rm d $ mkdir d $ bzr add -q d $ bzr commit -q -m 'replace with d dir' $ echo a > d/a $ bzr add -q d/a $ bzr commit -q -m 'add d/a' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 2 add d file 1 replace with d dir 0 add d/a $ manifest source-hg tip % manifest of tip 644 d/a $ cd source-hg $ hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd ../..